Politics Delhi air turns 'hazardous' as AQI nears 1,000 at some places Updated : October 29, 2019 07:39 AM IST Air in Delhi turned "hazardous" during Diwali on Sunday with the Air Quality Index (AQI) recorded 999 at Mother Dairy in Patparganj area. Emission from firecrackers and stubble burning in adjoining areas of National Capital Region (NCR) increased the pollution level. Due to emission from firecrackers and stubble burning in adjoining areas of the NCR, the pollution situation is expected to worsen this week. A thin layer of haze is already hanging over Delhi. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.